OSRS Prayer Calculator

Plan Prayer training with live GE prices — bones on altars, ashes with Demonic Offering, ensouled heads, and the Varlamore libation bowl.

Training setup
Levels, offering, and method

Methods are filtered for this offering (bones → altars, ashes → Demonic Offering, shards → libation).

Required resources
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51,724

bones needed

FREE

No offering cost

XP needed13,034,431
XP per bone252
Est. time28.7 hours
Est. inventories1,848

Gilded altar (POH): Both burners lit

Training methods
Speed, cost, and risk tradeoffs
  • Gilded altar — 3.5× XP with both burners; fastest common bone method.
  • Chaos altar — same 3.5× XP with ~50% bone save; Wilderness PvP risk.
  • Ectofuntus — 4× XP but slower trips (bonemeal + slime).
  • Demonic Offering — 3× ash XP on the Arceuus spellbook (not an altar).
  • Libation bowl — 5 or 6 XP per blessed bone shard; drains 2 prayer points per 100 shards. Restore at the Shrine of Ralos or with potions.
  • Ensouled heads — reanimate at the Dark Altar; dragon heads are 1,560 XP each.
FAQ
Common Prayer training questions